系统分析了达县—卧龙河湿气管道爆裂的原因和干气管道内硫化铁粉尘产生的原因及其危害。
The fracture of Daxian-Wolonghe River Wet Gas Pipeline and the hazards of ferric sulfide powder produced in dry gas pipeline are analyzed in detail.
回流食管和气管颈段中后部血液的静脉汇入食管气管静脉干；
Veins of the madial-caudal cervical segment of the esophagus and trachea were drained into the esophatracheal vein trunk.
对各种方法进行了比较，干空气干燥法是干燥燃气管道最适合的方法。
After comparison of the different methods, it is concluded that the dry air exsiccation is the most suitable for drying gas pipeline.
尤其干空气干燥技术，开创了我国大口径输气管道干燥施工的先例。
Particularly, the drying technique of using dry air for large diameter pipeline was applied for the first time in our country.
结果右侧第三肋间后动脉与支气管动脉的共干类型有四种；
Results It was found that the common trunks of the right bronchial artery and the third posterior intercostal artery can be divided into four types.
对各种方法进行了比较，干空气干燥法是干燥燃气管道最适合的方法。
The principle, process, influence factors, advantages and disadvantages of dry air exsiccation in flowing gas evaporation method and the preparation of dry air are introduced mainly.
针对忠武输气管道，详细介绍了干空气干燥技术及应用。
Taking the Zhongxian-Wuhan Gas Pipeline as an example, the paper describes the dry air desiccation technique and its application in this pipeline.
甲状腺下静脉分单干、双干、三干的三种类型及吻合支均跨越气管颈部前面。
Inferior thyroid veins can be divided into such three types as single trunks, double trunks, three trunks and anastomotic branch and they all cross the front of the cervical part of the trachea.
甲状腺下静脉分单干、双干、三干的三种类型及吻合支均跨越气管颈部前面。
Inferior thyroid veins can be divided into such three types as single trunks, double trunks, three trunks and anastomotic branch and they all cross the front of the cervical part of the trachea.
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